Defines the main temperature or pressure target.
Disclaimer: This guide is a summary of the technical specifications for the Eliwell SB655/C and should not replace the official, in-depth installation manual provided by the manufacturer.
Fix: Verify compressor functionality, check refrigerant levels, or adjust the threshold. AL1 - Low Temperature Alarm: Cause: Temperature dropped below the ALL parameter limit. eliwell sb655 c manual repack
When switching high-current contactors or solenoids via internal relays, install an RC snubber circuit in parallel with the load to eliminate voltage spikes that can freeze the microprocessor.
The evaporator probe has failed. If a defrost cycle is triggered while E2 is active, the defrost will terminate based strictly on time ( dEt ) rather than temperature ( dSt ). Check connections at terminals 8 and 9. Defines the main temperature or pressure target
3 voltage-free digital inputs for door switches, high/low pressure alarms, or remote start/stop triggers.
Look for signs of pitting or carbon buildup near the output relay paths. AL1 - Low Temperature Alarm: Cause: Temperature dropped
The Eliwell SB655 C is a specialized electronic controller used widely in commercial refrigeration units, cold rooms, and HVAC systems. Whether you are a technician servicing a unit or an facility manager trying to restore optimal settings, having a consolidated "repack" of the manual is essential.